Paddle rotating device of variable-pitch wind driven generator

Abstract

The invention discloses a paddle rotating device of a variable-pitch wind driven generator. The paddle rotating device comprises a flow guide cover and three paddles, a mounting groove is formed in the flow guide cover, a driving mechanism is arranged in the mounting groove, three sets of transmission mechanisms meshed with the driving mechanism are arranged in the mounting groove in an annular array mode, three sets of rotating mechanisms meshed with the transmission mechanisms opposite to the three sets of rotating mechanisms are arranged on the flow guide cover, the three blades are connected with the rotating mechanisms opposite to the three blades through connecting mechanisms, first annular sliding grooves are formed in the side walls of the three sets of connecting mechanisms, and a plurality of fixing mechanisms extending into the first annular sliding grooves opposite to the flow guide cover are arranged on the flow guide cover. The paddle rotating device is reasonable in structural design, stable rotation of the propeller blades can be conveniently achieved, normal operation of variable-pitch work is guaranteed, the propeller blades can be conveniently disassembled and assembled, then the propeller blades are conveniently maintained, and the service life of the propeller blades is guaranteed.

Description

technical field [0001] The invention relates to the technical field of wind power generators, in particular to a blade rotating device of a pitch-variable wind power generator. Background technique [0002] The working principle of the wind turbine is relatively simple. The wind rotor rotates under the action of the wind, transforming the kinetic energy of the wind into the mechanical energy of the wind rotor shaft, and the generator rotates to generate electricity under the drive of the wind rotor shaft. The pitch angle of the blade changes the angle of attack of the airflow on the blade, thereby controlling the aerodynamic torque and aerodynamic power captured by the wind rotor. [0003] At present, in the process of using a variable-pitch wind turbine, the hydraulic pitch-variable system uses a hydraulic cylinder as the prime mover to synchronously drive three blades to change the pitch through a set of crank sliding structures. The pitch system is welded, and the disass...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the complex structure of the hydraulic pitch control system in the prior art, and the blades are usually welded with the pitch control system, the disassembly and installation process is cumbersome, and it is not convenient to disassemble the blades after long-term use Maintenance will affect its service life, and a blade rotation device for a variable-pitch wind turbine is proposed, which can not only facilitate the stable rotation of the blades, ensure the normal operation of the pitch change, but also facilitate the adjustment of the blades. It can be disassembled and installed to facilitate the maintenance of the blades and ensure their service life

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